2021 Mazda CX-30 Technical Service Bulletins

616 technical service bulletins (TSBs) are on record for the 2021 Mazda CX-30. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10208565Feb 9, 2022Electrical system, Equipment. Some customers may experience a SiriusXM Travel Link error when selecting Parking Information.
• 10208561Feb 9, 2022Electrical system. CX-30. Mazda3: Prior to February 8, 2022, some vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be erased after a BCM replacement or MDARS BCM software update (NOT with BCM update for SSPC5 or 4621B using MDRT). This is caused by a BCM-VCM software error. Customers having this concern should have their vehicle repaired using the following repair procedure.
• 10208560Feb 4, 2022Electrical system. Some vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) after a BCM replacement or MDARS BCM software update (NOT with BCM update for SSPC5 or 4621B using MDRT) and the DTC cannot be erased. This is caused by a BCM-VCM software error. Mazda is aware of the issue and is working on a resolution. If there is an issue with this concern, contact Hotline for newest repair information.
• 10208554Feb 4, 2022Other or unknown, Body and structure. Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions. Use a clean towel damped in leather/vinyl cleaner or mild soap to clean the steering wheel. NOTE: Upholstery maintenance and care information can also be found in the Owner's Manual.
• 10208562Feb 1, 2022Equipment, Electrical system. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 10206960Jan 27, 2022Electrical system, Forward collision avoidance, Equipment. Some vehicle may experience the i-ACTIVSENSE/ALH warning lights on and a system error messages may be found in the center display as well. DTC U3000:04 (FSC) is stored in memory DTC U3000:04 (FSC) - Forward sensing camera (FSC) internal malfunction This may be caused by a hardware failure in an internal device of the FSC that results in the malfunction detection. To eliminate this concern, the production process of…
• 10206952Jan 27, 2022Electrical system, Latches, locks and linkages. Some CX-5 and CX-30 customers may find that the liftgate does not close when pressing the power liftgate (PLG) rear switch (A) located on the interior liftgate trim. This may be caused by PLG switch corrosion. Water from a high pressure car washer and/or condensation may drip onto the switch connector and cause corrosion. To eliminate this concern, the PLG rear switch has been modified with a waterproof connector.
• 10206940Jan 13, 2022Electrical system, Equipment. Some vehicles may have a "Low Battery Risk. Start Vehicle to Charge 12V Battery" warning message in the instrument cluster and a 30 second alarm sound. This is caused by the vehicle's electrical control area network (CAN) entering "Sleep Mode" when the network awake time reaches 30 cumulative minutes without the engine running.
• 10206021Dec 22, 2021Engine cooling, Transmission and drivetrain. New Cylinder Head Assembly Established: A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly.
• 10206018Dec 22, 2021Equipment, Electrical system. Connected Vehicle Symptom Troubleshooting: Some customers may complain about any of the following: - Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. - Remote function(s) inoperative. o Engine Start / Stop o Door Lock / Unlock o Lights ON / OFF MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10206020Dec 21, 2021Equipment, Electrical system. Mazda Connect Symptom Troubleshooting (7th Generation Vehicles): Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. No. 1 Blank Screen No. 2. Rear View Camera is not displayed No. 3 Rebooting No. 4 Infotainment System Has No Sound No. 5 Commander Switch Does Not Work No. 6 Bluetooth device will not pair No. 7 Incorrect GPS position No. 8 Voice…
• 10206011Dec 21, 2021Equipment, Electrical system. Audio, Navigation, And Phone Concerns With Mazda Connect Infotainment System (7th Generation Models): Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA01_11012 or later). --> See document for full list. Customers having this concern(s) should have their vehicle repaired using the following repair procedure.
• 10205994Dec 21, 2021Electrical system. Battery Maintenance: This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure.
• 10206009Dec 20, 2021Equipment, Body and structure, Electrical system. Door Outer Handle Touch Sensor Does Not Lock And/Or Unlock: Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the remote transmitter. Symptom 1: The touch sensor of the front door outer handle does not lock the doors after rain and/or car washing, even though unlocking is possible. Symptom 2: The touch sensor of the front door outer handle…
• 10206008Dec 16, 2021Body and structure. Rear Outer Door Handle Fails To Return Due To Water Freezing In The Handle: Some vehicles may exhibit the rear outer handle remains pulled out and does not return when the rear outer handle is operated in freezing temperatures. This is caused by the accumulation of snow on the rear outer handle melting and dripping water on the sliding part of the lever.
• 10206005Dec 13, 2021Electrical system, Equipment. Door Lock Will Not Work Using Remote Transmitter and Engine Will Not Start: Some customers may experience all of following symptoms: 1. The door lock/unlock operation will not work using the remote transmitter button. 2. The door lock/unlock operation will not work using the door lock/release touch sensor. 3. The engine will not start using the ignition switch. 4. The transmitter operates by itself. 5. The key…
• 10206006Dec 2, 2021Fuel system, Equipment, Body and structure. Fuel Filler Lid Panel Is Deformed: Some vehicles may exhibit a deformed fuel-filler lid panel (1) attached to the fuel-filler lid box, resulting in a poor appearance. This concern is caused by the lid box not having enough water drainage capability which leads to the accumulation of water inside it. The water then freezes in cold weather and expands or the inner side of the lid panel absorbs the water and swells…
• 10203724Nov 24, 2021Engine cooling, Equipment. Some vehicles may have a “LOW ENGINE OIL LEVEL” warning message and a CHECK ENGINE light illuminated in the instrument cluster, along with DTC P250F:00 stored in memory. DTC P250F:00 - Engine oil level signal: engine oil level low. Upon inspecting the engine oil level, the level is found to be low and there doesn’t appear to be any trace of oil leakage in the engine compartment.
• 10203765Nov 22, 2021Equipment. Some customers may complain about any the following infotainment system concerns: Reboot, Slow reboot in morning, Display frozen, Display blank. NOTE: Rear view monitor operation is normal, No DTC stored
• 10203731Nov 19, 2021Visibility (wipers, defrost, mirrors), Equipment. Some vehicles may exhibit windshield glass distortion or a double-image from the active driving display. These may be due to a) distortion in the windshield glass not properly removed during the manufacturing process or b) glass with incorrect specifications used in the manufacturing process. To eliminate these concerns, the windshield glass manufacturing process has been modified.
• 10203761Nov 17, 2021Electrical system, Transmission and drivetrain. Due to a supplier issue, DTC C0061:94 is displayed instead of C0061:96 for Mazda3 and CX-30. Therefore, use the C0061:96 diagnostics on MGSS when DTC C0061:94 is stored.
• 10203762Nov 16, 2021Equipment. Some customers may complain about any the following infotainment system concerns: Reboot, Slow reboot in morning, Display frozen, Display blank. NOTE: Rear view monitor operation is normal, No DTC stored
• 10203760Nov 8, 2021Equipment, Visibility (wipers, defrost, mirrors). A customer may complain of poor A/C operation (either completely inoperative or not cold enough).
• 10203759Nov 4, 2021Electrical system, Equipment. For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of all PCM terminals used in SKYACTIV® vehicles and compare suspect terminal drag with a good know terminal.To measure the voltage/resistance avoiding any terminal damage.
• 10202694Oct 27, 2021Equipment, Visibility (wipers, defrost, mirrors). Some customers may complain that the driver’s side outer mirror glass vibrates. This is due to a structural gap between the outer glass mirror holder and the mirror glass causing the mirror to vibrate when the vehicle body vibrates at high speeds. To eliminate this concern, double sided tape has been applied between the outer glass mirror holder and the mirror glass.
• 10202774Oct 15, 2021Equipment, Engine cooling. A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly. Dealers can now utilize the Limited Parts Ordering (LPO) page on eMDCS to order the repair parts for 2.5L (with cylinder deactivation) and 2.5L turbo cylinder head repairs…
• 10202772Oct 13, 2021Transmission and drivetrain, Engine cooling, Equipment. A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly.
• 10202771Oct 13, 2021Equipment, Electrical system. Some customers may complain about any of the following: Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF, MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during…
• 10202695Oct 13, 2021Fuel system, Other or unknown. Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85. E10: A blend of 10% ethanol and 90% gasoline. E85: A blend of 85% ethanol and 15% gasoline All Mazda vehicles can run on gasoline containing up to 10% ethanol (E10) but only some 1999-2001 B3000 trucks can run on gasoline with more than 10%…
• 10202775Oct 7, 2021Equipment, Electrical system. MAZDA CONNECTED SERVICES - FREQUENTLY ASKED QUESTIONS (FAQ): Index: General Questions, Setup and Getting Started, Registration / Enrollment, WI-FI General Information, WI-FI How-To, WI-FI Trial Period, Interacting With The App, Service Issues, Troubleshooting, Reception Level Inspection, Dealer Processes, Conditions for Remote Engine Start Will Not Function, Conditions for Remote Engine Start Function Will turn…
• 10202764Oct 7, 2021Equipment, Electrical system. Beginning with July 1st vehicle production, vehicles will no longer have the In-Vehicle Digital Owner’s Manual (IVDOM) installed.
• 10202763Oct 4, 2021Equipment, Visibility (wipers, defrost, mirrors), Electrical system. The Blind Spot Monitoring (BSM) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction. BSM system indicates vehicle on the opposite side. i-ACTIVSENSE indicator ring will not turn green, Rear Cross Traffic Alert (RCTA) does not work, Rear side radar sensor aiming may fail, TPMS DTC(s) stored.
• 10202685Oct 4, 2021Electrical system, Tires, Engine cooling. Some vehicles may have a LOW ENGINE OIL LEVEL warning message and a CHECK ENGINE light illuminated in the instrument cluster, along with DTC P250F:00 stored in memory. DTC P250F:00 - Engine oil level signal: engine oil level low. Upon inspecting the engine oil level, the level is found to be low and there doesn't appear to be any trace of oil leakage in the engine compartment.
• 10201862Sep 28, 2021Electrical system, Equipment. MAZDA CONNECT Symptom Troubleshooting (7th Generation Vehicles). Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure
• 10201766Sep 27, 2021Equipment, Engine cooling. Some customers may experience the CHECK ENGINE light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up, The engine temperature gauge fluctuates, The low coolant temperature indicator (blue) light stays on longer or comes on while driving, Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable.
• 10201777Sep 24, 2021Equipment, Engine cooling. Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85. E10: A blend of 10% ethanol and 90% gasoline, E85: A blend of 85% ethanol and 15% gasoline, All Mazda vehicles can run on gasoline containing up to 10% ethanol (E10) but only some 1999-2001 B3000 trucks can run on gasoline with more than…
• 10201861Sep 16, 2021Engine cooling. If you receive a customer concern about the CHECK ENGINE light coming on and DTC P3400 (cylinder deactivation system malfunction) stored, the cylinder deactivation oil control valve may be plugged with plastic debris from the oil filter wrapper. The debris may enter the center of the oil filter when poking a hole in the filter wrapper during removal, and then travel through the engine and plug the cylinder…
• 10201859Sep 14, 2021Equipment, Electrical system. Some customers may complain about any of the following: Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF, MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during…
• 10201858Sep 13, 2021Equipment, Electrical system. When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated. CAUTION: DO NOT swap TCU with another vehicle as the TCU is VIN locked after activation. A TCU swap with another vehicle will disable Connected Services on both vehicles. If…
• 10201778Sep 8, 2021Transmission and drivetrain, Equipment. SSPC7 - SPECIAL SERVICE PROGRAM -TELEMATICS COMMUNICATION UNIT BATTERY DRAIN CONCERN AND CONNECTED SERVICES NOT AVAILABLE: Repair Outline and Important Notes: Reprogram the telematics communications unit with an USB stick. You must use MDARS after USB programming to check for DTC and sending ODR data. New information has been added to SSPC7 repair documents. Discard all other documents and print these documents…
• 10201779Sep 7, 2021Body and structure. DRW42 - DEALER REWORK POTENTIAL HAIL DAMAGE CONCERN: Action Required: There are currently 914 vehicles in dealer inventory or arriving soon that must be inspected as soon as possible. The affected dealer inventory will be posted to MGSS on Tuesday, September 7 and VIN’s will show “Open” the same day. Only the potentially affected vehicles will display DRW42 in eMDCS Warranty Vehicle Inquiry; however…
• 10201860Sep 3, 2021Body and structure. A customers may experience a roof water leak. The symptoms may include: Water in the spare tire well, Water in the rear differential, Electrical malfunctions, Infotainment system no audio sound from radio or other audio sources due to Remote Tuner water intrusion. The source of the leak may be pinhole anywhere along the roof seams under the 2 trim strips (where the roof rails attach). Depending on the location of…
• 10200933Aug 24, 2021Engine cooling, Electrical system. This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure.
• 10200527Aug 17, 2021Equipment. This service bulletin provides information regarding the proper use of the driver’s floor mat to avoid any potential interference with the foot pedals. The following are possible causes of floor mat interference, which can be avoided with proper usage.
• 10200942Aug 5, 2021Electrical system, Other or unknown, Engine cooling. Sspc7 - special service program -telematics communication unit battery drain concern and connected services not available
• 10200939Aug 5, 2021Engine cooling. A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly.
• 10200938Aug 5, 2021Equipment, Electrical system, Engine. Connected vehicle remote functions inoperative and/or engine no start due to low battery voltage. NOTE: SA-045/21 HAS BEEN SUPERCEDED TO SSPC7.
• 10200937Aug 5, 2021Engine, Electrical system, Equipment. Connected vehicle remote functions inoperative and/or engine no start due to low battery voltage. Some customers may experience the following symptoms: Connected Vehicle Remote Functions inoperative after SSPC6 repair. Connected Vehicle Remote Functions inoperative on vehicles built March 20, 2021 and later.
• 10200947Aug 3, 2021Equipment, Electrical system, Other or unknown. DRW41 - TELEMATICS COMMUNICATION UNIT (TCU) CONCERN - BATTERY DRAIN AND CONNECTED SERVICES. On certain subject 2021 MY CX-5 & CX-9 vehicles, a battery drain concern could occur due to the Telematics Communication Unit (TCU) not going to sleep. In addition, some vehicles were repaired under the cancelled campaign SSPC6, which caused Connected Services to no longer work.
• 10200935Aug 2, 2021Electrical system, Engine, Equipment. Connected vehicle remote functions inoperative and/or engine no start due to low battery voltage. Some customers may experience the following symptoms: Connected Vehicle Remote Functions inoperative after SSPC6 repair. Connected Vehicle Remote Functions inoperative on vehicles built July 1, 2021 and later.

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